Adding four elusive examples for 2.0

java/examples/Basics/Lights/Mixture/Mixture.pde

@@ -0,0 +1,34 @@
+/**
+ * Mixture
+ * by Simon Greenwold. 
+ * 
+ * Display a box with three different kinds of lights. 
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  noStroke();
+}
+
+void draw() {
+  background(0);
+  translate(width / 2, height / 2);
+  
+  // Orange point light on the right
+  pointLight(150, 100, 0, // Color
+             200, -150, 0); // Position
+
+  // Blue directional light from the left
+  directionalLight(0, 102, 255, // Color
+                   1, 0, 0); // The x-, y-, z-axis direction
+
+  // Yellow spotlight from the front
+  spotLight(255, 255, 109, // Color
+            0, 40, 200, // Position
+            0, -0.5, -0.5, // Direction
+            PI / 2, 2); // Angle, concentration
+  
+  rotateY(map(mouseX, 0, width, 0, PI));
+  rotateX(map(mouseY, 0, height, 0, PI));
+  box(150);
+}